Cesare DiBenedetto, 54, a retired Prince George's County policeman and a former deputy U.S. marshal with the Department of Justice, died of cancer Jan. 22 at his home in Silver Spring.

Mr. DiBenedetto was a native of Washington and a graduate of McKinley Technical High School. He attended the University of Maryland. He served with the Navy in the Pacific during World War II.

Before joining the Justice Department, he was a policeman with the Washington Aqueduct Police and the Maryland Park Police.

In 1961, Mr. DiBenedetto was appointed a deputy U.S. marshal with the U.S. Marshal Service. He retired in 1966. He joined the Prince George's County police as chief dispatcher in 1966. He retired a second time in 1972.

Survivors include his wife, Norma Jean, and two sons, Chester and Dennis, all of Silver Spring; two daughters, Karen Smiley of Edgewater, Md., and Deborah Crosby of Laurel; his mother, Maria DiBenedetto of Silver Spring; three sisters, Catherine Flynn of Lancaster, Va., Josephine Sutphin of Colonial Beach, Va., and Yolanda Aloi of Takoma Park, and two grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Montgomery County chapter of the American Cancer Society.